package com.lh.oss.common.utils;

import com.baomidou.mybatisplus.core.metadata.IPage;

import java.io.Serializable;
import java.util.List;

 /**
  * 分页工具类
  *
  * @author Mark sunlightcs@gmail.com
  */
 public class PageUtils implements Serializable {
     private static final long serialVersionUID = 1L;
     /**
      * 总记录数
      */
     private int totalCount;
     /**
      * 每页记录数
      */
     private int pageSize;
     /**
      * 总页数
      */
     private int totalPage;
     /**
      * 当前页数
      */
     private int currPage;
     /**
      * 列表数据
      */
     private List<?> list;

     /**
      * 分页
      * @param list        列表数据
      * @param totalCount  总记录数
      * @param pageSize    每页记录数
      * @param currPage    当前页数
      */
     public PageUtils(List<?> list, int totalCount, int pageSize, int currPage) {
         this.list = list;
         this.totalCount = totalCount;
         this.pageSize = pageSize;
         this.currPage = currPage;
         this.totalPage = (int)Math.ceil((double)totalCount/pageSize);
     }

     /**
      * 分页
      */
     public PageUtils(IPage<?> page) {
         this.list = page.getRecords();
         this.totalCount = (int)page.getTotal();
         this.pageSize = (int)page.getSize();
         this.currPage = (int)page.getCurrent();
         this.totalPage = (int)page.getPages();
     }
 }
